Marcus Chen
To create emissive maps in Substance Painter, you need to add an emissive channel to the object and then paint on its surface. You can increase the emissive intensity in the viewer settings and create an emissive channel in your layer stack to modulate it. You can also enable post-effects and change the glare settings to enhance the effect. Additionally, Substance Painter offers an in-built game renderer that allows you to view the object as it would appear in a game engine. This can be useful for previewing the emissive effect. To export the textures, simply go to File > Export Textures, and there are various options for organizing your textures, including Texture Packing, which is more efficient.
| Characteristics | Values |
|---|---|
| To add an emissive material | Add an emissive channel to the object, then paint on the surface |
| To increase emissive intensity | Go to viewer settings and increase the emissive intensity, then create an emissive channel in the layer stack to modulate it |
| To export textures | File > Export Textures. There are many different ways to organise your textures |
| Emissive map | Masks the location of the emission and provides colour data |
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What You'll Learn
Add an emissive channel to your layer stack
To add an emissive channel to your layer stack in Substance Painter, you need to follow a few steps. Firstly, in the viewer settings, you can increase the emissive intensity and create an emissive channel in your layer stack to modulate it. You can enhance the effect by enabling post-effects and adjusting the glare settings.
When adding an emissive channel, it is important to note that you need to turn on shadows in the render settings to properly see the effects of the emissive channel. Additionally, make sure that you disable the generator emissive under properties if it is automatically enabled, as this can cause everything in your model to turn white.
If you encounter issues with your texture turning white when adding an emissive channel, go to "Layers" and change from "Base Color" to "Emissive." Then, change the blending mode to "Disable" for everything that is not emissive-related. This issue may occur when something is providing colour to the channel and affecting it.
To have more control over the emissive effect, consider using a black and white mask to apply emissive properties only to specific areas of your model. This will allow you to isolate the areas you want to be emissive and prevent unintended effects on other parts of your model.
By following these steps and troubleshooting tips, you should be able to successfully add an emissive channel to your layer stack in Substance Painter and achieve the desired emissive effects on your model.
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Increase emissive intensity in viewer settings
To increase emissive intensity in viewer settings in Substance Painter, you can follow these steps:
- Access the viewer settings: This can be done by navigating to the appropriate menu within Substance Painter.
- Increase emissive intensity: In the viewer settings, locate the option for emissive intensity and adjust the slider or input value to increase the intensity. This will enhance the brightness and glow of emissive areas on your model.
- Create an emissive channel: In your layer stack, create a new emissive channel to modulate the emissive effect. This allows you to control the intensity and apply it specifically to the desired areas of your model.
- Enable post-effects: To further enhance the emissive effect, enable post-effects and adjust the glare settings. This will accentuate the emissive areas, making them more prominent and visually striking.
- Experiment with different values: By adjusting the emissive intensity and playing with the post-effects, you can fine-tune the overall appearance of the emissive map. Feel free to experiment with different settings until you achieve the desired look.
- Save and review: Once you've increased the emissive intensity and adjusted the settings, save your work and review the model. Check if the emissive areas meet your expectations and make any necessary adjustments to perfect the effect.
Remember that emissive maps in Substance Painter provide information about the location and colour of emission on your model. By increasing the emissive intensity in the viewer settings, you can enhance the visibility and impact of these emissive areas, making them stand out more in your final render.
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Use post effects like glare and luminance
When painting emissive maps in Substance Painter, you can use post-effects like glare and luminance to enhance your work. Post-processing effects can add a unique touch to your creations and make them stand out.
Substance Painter offers a range of post-processing effects, including glare, which can be accessed through the Painter > Features > Post Processing menu. Glare is a powerful tool that can create a striking light glare effect, adding intensity and drama to your emissive maps. By adjusting the glare settings, you can control the strength and placement of the glare effect, allowing for a wide range of creative possibilities.
To further enhance your emissive maps, you can also experiment with luminance adjustments. Luminance refers to the brightness or intensity of light emitted from a surface. By manipulating the luminance values, you can create variations in brightness across your emissive map, adding depth and contrast to your artwork.
Additionally, combining glare and luminance effects can lead to intriguing visual outcomes. For instance, you can use glare to introduce light reflections or lens flares, while simultaneously adjusting the luminance to fine-tune the overall brightness of the scene. This interplay between glare and luminance can result in captivating light and shadow interactions, elevating the visual appeal of your emissive maps.
Post-effects are a versatile tool in Substance Painter that empowers artists to go beyond the basics and create truly remarkable visuals. By understanding and manipulating these effects, you can take your emissive map paintings to the next level, adding depth, drama, and a unique artistic flair to your digital creations.
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Export textures from Substance Painter
To export textures from Substance Painter, you must first be satisfied with your work. Once you are, you can export your textures to bitmap files, which can be used in almost any 3D software. To access the Export Textures dialog, go to File > Export Textures or use the keyboard shortcut Ctrl/Cmd + Shift + E.
The Export Textures dialog has three tabs: Settings, Output Templates, and List of Exports. The Settings tab contains the primary settings for your export. Here, you can enable or disable the export of texture sets and adjust settings for each texture set. With Global settings, you can adjust settings for all texture sets simultaneously. The Output Templates tab allows you to customize the format and settings of the exported files.
Before export, the List of Exports tab shows the maps that are currently set to export. You can drag maps from Input maps, Mesh maps, and Converted maps into channels of the available files to change which maps correspond with which channel. The background colours of each file's channels correspond with the coloured squares in the lists of input maps. You can also hover over any channel to see which input maps are associated with it.
After export, the Console shows the current progress of your export. You can also use the Open output directory to quickly open a file browser to the export location. Substance Painter exports to a wide range of file formats, including PSD (Photoshop) files, where each texture set from a project is exported as a single PSD file. A higher bit depth provides a higher-quality texture but can increase file sizes dramatically.
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Create projected decals in Unreal Engine
To paint emissive maps in Substance Painter, you need to first create an emissive channel in your layer stack. You can then increase the emissive intensity in the viewer settings. This will allow you to drive the effect by enabling post-effects and changing the glare settings.
Now, to create projected decals in Unreal Engine, you can follow these steps:
Decals are a material type in Unreal Engine that can modify a scene by projecting characteristics such as base colour, roughness, and normals onto geometry in the level. They are commonly used to add details like grime and damage to surfaces. To create projected decals, you can use the Decal Actor or a decal mesh to project directly onto static and skeletal meshes.
Unreal Engine offers two methods for projecting decals onto meshes:
- Accumulate all decals in the DBuffer and then sample the DBuffer in BasePass materials.
- Blend decals directly to the GBuffer after the BasePass but before lighting.
DBuffer decals are enabled by default in Unreal Engine 5 projects. However, they may not be supported on all platforms, such as mobile devices. When using DBuffer decals, ensure that the depth prepass is active in the scene. This is usually not an issue for higher-end platforms that use Virtual Textures, Nanite, or Lumen systems.
To optimise performance when using DBuffer decals, only enable the response for materials that need to receive decals. You can also use the Feature Level Switch material node to simplify material graphs for lower-end rendering paths.
By following these steps, you can effectively create projected decals in Unreal Engine and customise the appearance of your scenes.
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Frequently asked questions
To paint emissive maps in Substance Painter, first add an emissive channel to the object, then paint on its surface. You can increase the Emissive Intensity in the viewer settings and create an emissive channel in your layer stack to modulate it. You can also enable post-effects and change the Glare settings to enhance the effect.
To export textures from Substance Painter, go to File > Export Textures. There are various ways to organise your textures, including an in-built option for exporting to the Unreal Engine. Substance Painter and Unreal Engine also allow for Texture Packing, which is a more efficient way of exporting textures.
To view emissive maps in Substance Painter, you can apply the built-in game renderer to see the object as it would appear in a game. You can also add post-effects like glare and luminance to improve visibility.
